| Acetic acid plays an extremely significantly role as an important chemical products in the research and industry production. The process of acetic acid dehydration in the heterogeneous column has been designed in this paper. The extraction-azeotropic distillation process has been performed which optimized and improved the process of acetic acid dehydration. The tool of acetic acid dehydration process simulation is Aspen plus software.Firstly, the process of acetic acid dehydration in the heterogeneous column has been analysis through physical properties, residual curve diagrams and triangle phase diagrams. Then the temperature distribution compared with the industry data can prove the rationality of property model in the process of acetic acid dehydration.Through the steady-state model of acetic acid dehydration process is put forward, I discussed the influence of the number of extraction tower, the feed composition and extractor with different concentration in the process. Finally, a optimum process conditions is selected. Compared with azeotropic distillation in Total Annual Cost, the final recommended process is extraction-azeotropic distillation process. |
PDF Full Text Request